Side mirror



FIG. 1 is a front perspective view of a side mirror showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a bottom view thereof; and,

FIG. 6 is a side view thereof.

The broken lines illustrate portions of the side mirror that form no part of the claimed design. 

CLAIM The ornamental design for a side mirror, as shown and described. 